Projects

MVP bookkeeping app with chat and voice-note input for fast expense tracking.

• ▸Covers 2 input modes for the MVP: chat and voice note.
• ▸Cuts routine entry from 6 taps to 2 actions in the prototype flow.
• ▸Consolidates 1 bookkeeping experience instead of a separate form-heavy flow.

Integrated banking platform with microservices and Open API connectivity.

• ▸Used by 20+ banks across Indonesia, Malaysia, and the region.
• ▸Already deployed at 2 named Indonesian banks: BNI and Bank Bumi Arta.
• ▸Extended 1 integrated platform with microservices and Open API support.

MVP AI companion for private chat and voice-based venting.

• ▸Supports 2 conversation modes in the MVP: text chat and voice note input.
• ▸Reduces first interaction to 1 tap-to-talk or tap-to-type action.
• ▸Keeps the experience in 1 private companion flow backed by AI context.

MVP reward balance checker for partner-store purchases and loyalty tracking.

• ▸Centralizes reward balance tracking across 1 partner network in the MVP.
• ▸Removes 2 manual steps from checking purchase rewards at a store.
• ▸Keeps loyalty data in 1 Supabase-backed customer view.

Kafka-backed service mesh for transaction and merchant lifecycle events.

• ▸Processed 2.4M+ daily domain events across 18 Kafka topics.
• ▸Reduced duplicate event handling by 72% through idempotency keys and dead-letter review.
• ▸Cut downstream incident triage from 45 minutes to 12 minutes with traceable event metadata.

Golden-path service templates, CI/CD, and runtime standards for backend teams.

• ▸Standardized 11 backend services on one build and deployment workflow.
• ▸Reduced new service bootstrap time from 3 days to under 4 hours.
• ▸Improved deployment frequency by 35% while keeping rollback steps documented.

Metrics, logs, and traces wired into backend release ownership.

• ▸Created 24 service dashboards covering latency, error rate, saturation, and Kafka lag.
• ▸Lowered mean time to detect critical regressions from 20 minutes to 5 minutes.
• ▸Mapped 9 distributed traces across checkout, settlement, and notification flows.

Batch and streaming reconciliation for transaction settlement accuracy.

• ▸Matched 1.1M+ settlement rows per run across payment, fee, and refund records.
• ▸Reduced manual reconciliation work by 60% with exception grouping.
• ▸Improved nightly job completion from 6 hours to 95 minutes through partitioned processing.

CI/CD guardrails for safer backend releases and faster rollback decisions.

• ▸Added 14 automated checks across build, test, image scan, and deployment gates.
• ▸Reduced failed production deploys by 48% over 2 release quarters.
• ▸Documented rollback paths for 7 critical services with under 10-minute recovery targets.